Unlike father, unlike son: the Whitehalls’ double act

‘Oh really I don’t mind. Whatever you want to pay me. I just want to do this job and I’m really looking forward it. How much were you thinking?’ says Michael Whitehall in an unctuous, good-natured, amenable voice. Then, in an instant, having been told the imaginary amount, he turns savagely nasty and bangs his fist on the table.